Adams |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1687 |
| Arthur B. Langlie | R | 1191 |
Asotin |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2194 |
| Arthur B. Langlie | R | 1260 |
Benton |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 11404 |
| Arthur B. Langlie | R | 6083 |
Chelan |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 7051 |
| Arthur B. Langlie | R | 4758 |
Clallam |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 5057 |
| Arthur B. Langlie | R | 3263 |
Clark |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 12884 |
| Arthur B. Langlie | R | 8188 |
Columbia |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 806 |
| Arthur B. Langlie | R | 747 |
Cowlitz |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 7864 |
| Arthur B. Langlie | R | 5339 |
Douglas |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 3051 |
| Arthur B. Langlie | R | 1127 |
Ferry |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 721 |
| Arthur B. Langlie | R | 292 |
Franklin |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 4042 |
| Arthur B. Langlie | R | 1546 |
Garfield |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 641 |
| Arthur B. Langlie | R | 503 |
Grant |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 6398 |
| Arthur B. Langlie | R | 2557 |
Grays Harbor |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 11383 |
| Arthur B. Langlie | R | 5488 |
Island |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2072 |
| Arthur B. Langlie | R | 1747 |
Jefferson |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1772 |
| Arthur B. Langlie | R | 1235 |
King |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 132150 |
| Arthur B. Langlie | R | 101519 |
Kitsap |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 19463 |
| Arthur B. Langlie | R | 7645 |
Kittitas |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 4185 |
| Arthur B. Langlie | R | 2618 |
Klickitat |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1886 |
| Arthur B. Langlie | R | 1416 |
Lewis |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 8183 |
| Arthur B. Langlie | R | 5440 |
Lincoln |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 2324 |
| Arthur B. Langlie | R | 1606 |
Mason |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 3967 |
| Arthur B. Langlie | R | 2065 |
Okanogan |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 5242 |
| Arthur B. Langlie | R | 2460 |
Pacific |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 3672 |
| Arthur B. Langlie | R | 1960 |
Pend Oreille |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 1397 |
| Arthur B. Langlie | R | 757 |
Pierce |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 51274 |
| Arthur B. Langlie | R | 25093 |
San Juan |
| Candidate | Party | Votes |
|---|
| Arthur B. Langlie | R | 629 |
| Warren G. Magnuson | D | 581 |
Skagit |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 8168 |
| Arthur B. Langlie | R | 6362 |
Skamania |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 962 |
| Arthur B. Langlie | R | 494 |
Snohomish |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 26007 |
| Arthur B. Langlie | R | 13301 |
Spokane |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 39667 |
| Arthur B. Langlie | R | 26588 |
Stevens |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 3643 |
| Arthur B. Langlie | R | 2254 |
Thurston |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 11341 |
| Arthur B. Langlie | R | 7570 |
Wahkiakum |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 773 |
| Arthur B. Langlie | R | 480 |
Walla Walla |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 6160 |
| Arthur B. Langlie | R | 5528 |
Whatcom |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 10258 |
| Arthur B. Langlie | R | 8414 |
Whitman |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 4624 |
| Arthur B. Langlie | R | 4400 |
Yakima |
| Candidate | Party | Votes |
|---|
| Warren G. Magnuson | D | 17807 |
| Arthur B. Langlie | R | 15379 |